<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>

  <body>
    <div id="app"></div>

    <template id="my-app">
      <h2>{{fullName}}</h2>
      <h2>{{result}}</h2>
      <h2>{{reverseMessage}}</h2>
    </template>

    <script src="../js/Vue.js"></script>
    <script>
      const app = {
        template: '#my-app',
        data() {
          return {
            firstName: 'kobe',
            lastName: 'Bryant',
            score: 80,
            message: 'Hello World'
          }
        },
        computed: {
          // 定义了一个计算属性叫fullName
          fullName() {
            return this.firstName + ' ' + this.lastName
          },
          result() {
            return this.score >= 60 ? '及格' : '不及格'
          },
          reverseMessage() {
            return this.message.split(' ').reverse().join(' ')
          }
        }
      }

      Vue.createApp(app).mount('#app')
    </script>
  </body>
</html>
